#F4FB63#F4FB63

#F4FB63 is a very light, vivid yellow. Relative luminance 0.891; OKLCH L 95.5% C 0.172 H 111.7°. Best body text is #000000 at 18.83:1 contrast (WCAG AA passes).

Color values

HEX	#F4FB63
RGB	rgb(244, 251, 99)
HSL	hsl(63, 95%, 69%)
HSV	hsv(63, 61%, 98%)
CMYK	cmyk(2.8%, 0%, 60.6%, 1.6%)
CIE-LAB	lab(95.63, -21.09, 69.84)
CIE-LCH	lch(95.63, 72.95, 106.80°)
OKLab	oklab(95.51% -0.0635 0.1594)
OKLCH	oklch(95.51% 0.172 111.7)
XYZ	xyz(74.0596, 89.1300, 25.1045)
Luminance	0.8913 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F4FB63 #6A63FB

analogous

#FBB663 #F4FB63 #A8FB63

triadic

#F4FB63 #63F4FB #FB63F4

tetradic

#F4FB63 #63FBB6 #6A63FB #FB63A8

square

#F4FB63 #63FBB6 #6A63FB #FB63A8

split-complementary

#F4FB63 #63A8FB #B663FB

monochromatic

#D4DE06 #F0F927 #F4FB63 #F8FD9F #FCFEDA

Accessibility & contrast

On white

1.12

#F4FB63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.83

#F4FB63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F4FB63

18.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F4FB63	#FFFFFF	#000000	##000000
##F4FB63	1.00	1.12	18.83	18.83
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.83	21.00	1.00	1.00
##000000	18.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF051

Deuteranopia (green-blind)

#FFF46D

Tritanopia (blue-blind)

#FFEDDB

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #f4fb63;
/* rgb */ color: rgb(244, 251, 99);
/* oklch */ color: oklch(95.5% 0.172 111.7);

Tailwind

colors: {
  custom: {
    50: '#fbfc95',
    500: '#f4fb63',
    950: '#000000',
  },
}

SCSS

$custom: #f4fb63;
$custom-light: #fbfc95;
$custom-dark: #000000;

JSON

{
  "hex": "#f4fb63",
  "rgb": {
    "r": 244,
    "g": 251,
    "b": 99
  },
  "hsl": {
    "h": 62.763,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.95509,
    "c": 0.17156,
    "h": 111.7
  },
  "luminance": 0.89128
}

Semantic roles & 50–950 ramp

primary

#F4FB63

secondary

#352DD5

accent

#00E60B

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #F4FB63

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →